Bearing and frame construction for hand-operated beaters



Aug. 6, 1940. H. w. HINDES BEARING AND FRAME CONSTRUCTION FOR HAND-OPERATED BEATZSRS Filed July 20, 1938 fiawarqf 1720 615 iejf BEARING AND FRAME CONSTRUCTION; FOR e -PHAND-OBERATED-YBEATERS 1;

I Iovvlaiwl wi Hlindesiworcesterz Mass; assignor to The Washburn UompanmTWorcester, Mass, "at I corporati'o'nof Massachusetts" Application July 20; 1938, SerialNo. 220,284 a v 4'Claims. (01. 259-431) The'present invention relates to hand-operated .cup is adapted torotatewith the shaft. In asbeaters of the type intended forhousehold use sembling the parts, one cup 9 is mounted on the in beating eggs, dressings and the like. shaft '2, with' itsiouter end surface abutting a One object of the invention isto' provide an shoulder l3 providedonthe shaft. A series of improved anti-friction bearing construction for ba1ls'8 having'been assembled Within this cup, the I 5 supporting the hand-operated driving shaft of shaft 2=is then inserted through the alined frame the beater, so as to reduce to a minimum theeffort openings :1, with the end of the shaft 2 extendrequired to operate the beater. Accordingly, the ingjbeyond the seat .6' provided in the left-hand shaft which carries a gear for driving the beating frame member Liand with the balls positioned 19 elements, is rotatably supported between aseries within the seat Bzof the right-hand frame mem- 10 of anti-friction members located between the her The Second Cup W th a second es. of

shaft andthe beater frame, A further object is 152,115 8 assembled therein, is then forced 0n the to providean improved mounting for th d end of the shaft 2, the shaft being of suflicient carrying the beater elements, and other advantalength so t the en thereof extending beyond geous features of the invention willmore fully e cup, ay be riv ted ve t as ted.

appear fromthe following description considered This last Operation serves to clamp the t O es in connection with the acoompar ying" dr i of balls 8 between the cups 9 and. seats 6, on oppoin hich; 1 E site sides of the gear 3. a

Figure 1 is a view in side elevation of a -beater When the shaft 2 is turned by v handle the embodying the present invention, with the parts Cups 9 turn With so at the Whole 1 involved in the bearing construction shown in shaft assembly, includihgihe driving gear s section. supported by the two series of balls 8. Due to Fig. 2 is a fragmentary view of a portion of e the fact that the shaft extends freely through of the frame members, with the bearing elements the Openings 7 in the frame members there re m d, no parts binding on the shaft 2 as it rotates, and 5 Fig. 3 is a sectional view along the line 3-3 the bearing ssure is eve y divided on pp of Fig. 1, looking in the direction of the arrows. site sides of the a 3, between the two series Referring first to Fig. 1, the frame of th b t of balls 8 running in the raceways provided by om ri e a pair f spaced id members I the frame seats 6 and the cups 9. It is evident tween W ch extends a shaft 2 carrying a, gear. from a consideration of Fig. 2, that when the 30 3 in mesh with pinions 4 connected to the beater part-5 have been assembled, s c bed above, elements 5, Th particular arrangement the two series of balls 8 are substantially entween the driving gear 3, pinions 4 and beater closed by the D flanges s t the possibility lement 5, forms no part of t present i of foreign matter getting into the ball bearings,

tion, which has to do with an improved anti- Substantially e minated. 35 friction bearing construction for supporting the From the foregoing, it is apparent that by the haft 2 so t t may be rotated by a suitable present invention there is provided an improved handle, t a minimum of efiorh I anti-friction bearing construction for the driv- I th improved bearing construction, each ing shaft of a hand-operated beater, characterized frame member I provides an annular seat 6 surby the fact that the shaft is entirely supported y 46 rounding an opening 1 of greater di m t t the two series of balls, so that the effort required the shaft 2, so that there is ample clearance for to drive the heater is reduced to a um. the shaft 2 in passing through the alined open- AS previously Pointed out, the ntiOIl also ings] of th pair of frame members The Seat contemplates an improved mounting for the U- 5 is rounded to the curvature of a series of balls 8, Shaped rod which the heater elements 5 and the balls 8 are retained in the sheet by means are reiatably mounted, as shown n Fig. 1. The of a cup 9 providing an annular curved flange In, spaced legs of this rod l4 extend upwardly above tti closely around th outer rim of the Seat the pinions 4, and are received in semi-cylindrical The cup 9 also provides a central cylindrical pordepressions l5 formed at the lower end of each 50 tion H, which supports the series of balls 8 in frame member s st s w in Fi 2, an 50 engagement with the opposed surfaces of the oifset [6 provided in each frame member I, above seat 6 and the flange l0. the depression l5, has an opening ll, through The cylindrical portion ll of ea h cup 9, prowhich an end of the rod I 4 may pass. The lower vides an opening I2 of such diameter that the end of each frame member I also provides spaced shaft 2 fits tightly within the opening, and the ears l8, which are adapted to be received in open- 5 freely through the openings I I, the ends are.

slabbed off, as indicated at Ma, and it is to be noted that these slabbed-off ends closelyengage the outside of each annular ball seat 5,1when the assembly has been completed. In other Words, the ball seats 6, provided by the frame members l,'act as abutments to positively limit movement of the rod ends through the openings ll, when the parts are assembled, thereby assur-- ing a uniform relation between the parts, when producing the heaters in large quantities.

After the rod ends have engaged the frame seats 6, as shown in Fig. 1, the rod I4 is locked in position by prick-bunching each leg thereof at 20, flush with the upper surface of the yoke 19. In the completed beater, .the rod I4 is therefore very rigidly supported by the frame member I, by reason of the abutting engagement of it's free ends with the bearing seats 6, with the semicylindrical depressions l5 serving to maintain the legs of the rod in alinement, so that the beater elements 5 will always rotate freely thereon, when driven by the gear 3 and cooperating pinionsl.

I claim:

l. A beater comprising a frame providing spaced legs having alined openings, a shaft extending. freely through and beyond said frame openings and carrying a driving gear between said legs, a series of balls surrounding saidshaft beyond each frame opening, oppositely facing pairs of race-ways for said balls provided by said frame and by members rotatable with said ings provided by a yoke H, with bending over I shaft, and means for holding said race-way members comprising enlargements formed on said shaft to maintain both series of balls in rolling contact with said pairs of race-ways.

2. A beater comprising a frame providing spaced legs having alined openings, oppositely facing annular seats surrounding said openings, a shaft extending freely through and beyond said openings and carrying a driving gear between said legs, members mounted on said shaft outside openings and carrying a driving gear between said legs, members mounted on said shaft outside of said frame legs and providing annular seats opposing the seats on said legs, a series of balls positioned between each pair of seats, and enlargements formed on said shaft to maintain both series of balls in rolling contact with said pairs of seats.

4, A beater comprising a frame providing spaced parallel legs having alined openings, outwardly concave annular seats surrounding said openings, a shaft extending freely through said ,openings and beyond said seats carrying a driving gear disposed between said legs, members mounted on said shaft outside of said legs and providing inwardly concave annular seats opposing the seats on said legs, a series of balls positionedbetween each pair of opposed seats, and

enlargements formed on said shaft and engaging the outside of said members, to maintain both series of balls in rolling contact with said pairs of seats.

HOWARD W. HINDES. 

